Quick definitions from WordNet (adjunct)▸ noun:a construction that is part of a sentence but not essential to its meaning and can be omitted without making the sentence ungrammatical▸ noun:something added to another thing but not an essential part of it▸ noun:a person who is an assistant or subordinate to another▸ adjective:of or relating to a person who is subordinate to another▸ adjective:relating to something that is added but is not essential
▸ Word origin